/*
 This source file is part of the Swift.org open source project

 Copyright (c) 2021 Apple Inc. and the Swift project authors
 Licensed under Apache License v2.0 with Runtime Library Exception

 See http://swift.org/LICENSE.txt for license information
 See http://swift.org/CONTRIBUTORS.txt for Swift project authors
*/

import XCTest
import Basics
import TSCBasic
import PackageModel

class PackageIdentityScopeTests: XCTestCase {
    func testValidScopes() throws {
        XCTAssertNoThrow(try PackageIdentity.Scope(validating: "mona"))
        XCTAssertNoThrow(try PackageIdentity.Scope(validating: "m-o-n-a"))
        XCTAssertNoThrow(try PackageIdentity.Scope(validating: "a"))
        XCTAssertNoThrow(try PackageIdentity.Scope(validating: "1"))
        XCTAssertNoThrow(try PackageIdentity.Scope(validating: String(repeating: "a", count: 39)))
    }

    func testInvalidScopes() throws {
        XCTAssertThrowsError(try PackageIdentity.Scope(validating: "")) { error in
            XCTAssertEqual(error.localizedDescription, "The minimum length of a package scope is 1 character.")
        }

        XCTAssertThrowsError(try PackageIdentity.Scope(validating: String(repeating: "a", count: 100))) { error in
            XCTAssertEqual(error.localizedDescription, "The maximum length of a package scope is 39 characters.")
        }

        XCTAssertThrowsError(try PackageIdentity.Scope(validating: "!")) { error in
            XCTAssertEqual(error.localizedDescription, "A package scope consists of alphanumeric characters and hyphens.")
        }

        XCTAssertThrowsError(try PackageIdentity.Scope(validating: "あ")) { error in
            XCTAssertEqual(error.localizedDescription, "A package scope consists of alphanumeric characters and hyphens.")
        }

        XCTAssertThrowsError(try PackageIdentity.Scope(validating: "🧍")) { error in
            XCTAssertEqual(error.localizedDescription, "A package scope consists of alphanumeric characters and hyphens.")
        }

        XCTAssertThrowsError(try PackageIdentity.Scope(validating: "-a")) { error in
            XCTAssertEqual(error.localizedDescription, "Hyphens may not occur at the beginning of a scope.")
        }

        XCTAssertThrowsError(try PackageIdentity.Scope(validating: "a-")) { error in
            XCTAssertEqual(error.localizedDescription, "Hyphens may not occur at the end of a scope.")
        }

        XCTAssertThrowsError(try PackageIdentity.Scope(validating: "a--a")) { error in
            XCTAssertEqual(error.localizedDescription, "Hyphens may not occur consecutively within a scope.")
        }
    }

    func testScopesAreCaseInsensitive() throws {
        let lowercase: PackageIdentity.Scope = "mona"
        let uppercase: PackageIdentity.Scope = "MONA"

        XCTAssertEqual(lowercase, uppercase)
    }
}
